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Cheap flights from Seattle to Ireland from €236

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 15/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m1 stop
€368Icelandair
Tue, 17 Mar - Tue, 14 Apr
Icelandair Logo
15:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m1 stop
€379Icelandair
Tue, 17 Mar - Tue, 14 Apr
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00
DUB
-
SEA
13h 30m1 stop
€380Icelandair
Tue, 24 Feb - Tue, 3 Mar
American Airlines Logo
07:35 - 11:30
SEA
-
SNN
19h 55m2 stops
American Airlines Logo
07:50 - 16:55
SNN
-
SEA
17h 05m1 stop
€404American Airlines
Tue, 10 Feb - Tue, 17 Feb
American Airlines Logo
12:51 - 16:45
SEA
-
SNN
19h 54m2 stops
American Airlines Logo
07:50 - 21:57
SNN
-
SEA
22h 07m2 stops
€412American Airlines
Tue, 10 Feb - Tue, 17 Feb
Delta Logo
07:10 - 12:55
SEA
-
ORK
21h 45m2 stops
Delta Logo
06:15 - 11:40
ORK
-
SEA
13h 25m1 stop
€494Delta
Wed, 11 Feb - Wed, 18 Feb
Multiple Airlines Logo
08:00 - 19:50
SEA
-
ORK
27h 50m2 stops
Multiple Airlines Logo
17:05 - 12:20
ORK
-
SEA
27h 15m1 stop
€544Multiple Airlines
Fri, 10 Apr - Thu, 16 Apr
Multiple Airlines Logo
08:00 - 10:45
SEA
-
ORK
18h 45m2 stops
Multiple Airlines Logo
17:05 - 21:51
ORK
-
SEA
36h 46m2 stops
€550Multiple Airlines
Fri, 10 Apr - Thu, 16 Apr
Air Canada Logo
10:05 - 16:45
SEA
-
SNN
22h 40m2 stops
Air Canada Logo
07:50 - 21:06
SNN
-
SEA
21h 16m2 stops
€569Air Canada
Wed, 4 Mar - Sun, 8 Mar
Air Canada Logo
15:40 - 23:25
SEA
-
ORK
23h 45m2 stops
Air Canada Logo
11:55 - 09:15
ORK
-
SEA
29h 20m3 stops
€587Air Canada
Wed, 11 Feb - Wed, 18 Feb

British Airways flights from Seattle to Ireland

Our best British Airways deals on Seattle to Ireland flight tickets
British Airways
23 Feb
SEA18:50Seattle/Tacoma Intl
16h 50m
1 stop
DUB19:40Dublin
2 Mar
DUB20:40Dublin
22h 50m
1 stop
SEA11:30Seattle/Tacoma Intl
€393
Find similar
British Airways
1 Mar
SEA18:50Seattle/Tacoma Intl
16h 50m
1 stop
DUB19:40Dublin
11 Mar
DUB18:00Dublin
30h 55m
1 stop
SEA17:55Seattle/Tacoma Intl
€394
Find similar
British Airways
28 Apr
SEA20:20Seattle/Tacoma Intl
12h 45m
1 stop
DUB17:05Dublin
12 May
DUB10:30Dublin
15h 55m
1 stop
SEA18:25Seattle/Tacoma Intl
€398
Find similar

Delta flights from Seattle to Ireland

Our best Delta deals on Seattle to Ireland flight tickets
Delta
8 Feb
SEA14:15Seattle/Tacoma Intl
17h 30m
1 stop
DUB15:45Dublin
20 Feb
DUB05:55Dublin
13h 45m
1 stop
SEA11:40Seattle/Tacoma Intl
€418
Find similar
Delta
2 Feb
SEA21:55Seattle/Tacoma Intl
33h 05m
2 stops
ORK15:00Cork
16 Feb
ORK13:25Cork
30h 15m
1 stop
SEA11:40Seattle/Tacoma Intl
€421
Find similar
Delta
7 Feb
SEA21:59Seattle/Tacoma Intl
33h 46m
2 stops
DUB15:45Dublin
23 Feb
DUB13:25Dublin
30h 15m
1 stop
SEA11:40Seattle/Tacoma Intl
€422
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 30 December 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/3

15:35-10:15

1 stop11h 40m

Dublin

Tue 14/4

14:15-17:55

1 stop11h 40m

€368

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/3

15:35-10:15

1 stop11h 40m

Dublin

Tue 14/4

14:15-20:40

1 stop14h 25m

€379

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 24/2

14:35-10:15

1 stop11h 40m

Dublin

Tue 3/3

11:30-17:00

1 stop13h 30m

€380

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/2

07:35-11:30

2 stops19h 55m

Shannon

Tue 17/2

07:50-16:55

1 stop17h 05m

€404

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/2

12:51-16:45

2 stops19h 54m

Shannon

Tue 17/2

07:50-21:57

2 stops22h 07m

€412

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 11/2

07:10-12:55

2 stops21h 45m

Cork

Wed 18/2

06:15-11:40

1 stop13h 25m

€494

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Fri 10/4

08:00-19:50

2 stops27h 50m

Cork

Thu 16/4

17:05-12:20

1 stop27h 15m

€544

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Fri 10/4

08:00-10:45

2 stops18h 45m

Cork

Thu 16/4

17:05-21:51

2 stops36h 46m

€550

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/3

10:05-16:45

2 stops22h 40m

Shannon

Sun 8/3

07:50-21:06

2 stops21h 16m

€569

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 11/2

15:40-23:25

2 stops23h 45m

Cork

Wed 18/2

11:55-09:15

3 stops29h 20m

€587

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €450.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €556 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €505 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 27% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €101
Flights to Shannon, Clarefrom €93
Flights to Donegalfrom €239
Flights to Milltown (Kerry)from €38